作业帮[(x+y)^3]^6-3[(x+y)^3]^6X(x+y)^4X(-x-y)^2大写的X是乘号 小写的x是字母
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![[(x+y)^3]^6-3[(x+y)^3]^6X(x+y)^4X(-x-y)^2大写的X是乘号 小写的x是字母](/uploads/image/z/1657105-25-5.jpg?t=%5B%28x%2By%29%5E3%5D%5E6-3%5B%28x%2By%29%5E3%5D%5E6X%28x%2By%29%5E4X%28-x-y%29%5E2%E5%A4%A7%E5%86%99%E7%9A%84X%E6%98%AF%E4%B9%98%E5%8F%B7+%E5%B0%8F%E5%86%99%E7%9A%84x%E6%98%AF%E5%AD%97%E6%AF%8D)
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[(x+y)^3]^6-3[(x+y)^3]^6X(x+y)^4X(-x-y)^2大写的X是乘号 小写的x是字母
[(x+y)^3]^6-3[(x+y)^3]^6X(x+y)^4X(-x-y)^2
大写的X是乘号 小写的x是字母
[(x+y)^3]^6-3[(x+y)^3]^6X(x+y)^4X(-x-y)^2大写的X是乘号 小写的x是字母
原式=(x+y)^18-3(x+y)^18*(x+y)^4*(x+y)^2
=(x+y)^18-3(x+y)^(18+4+2)
=(x+y)^18-3(x+y)^24
请问你要问什么问题呢？问题没有描述清楚，不好回答的……
3x(x-y)³-6y(y-x)²
(3x-y)(3y+x)-(x-y)(x+y)
因式分解 （x-3y)(x+6y)
[2(x-y)^5-8(x-y)^2(x+y)+6y(x-y)^2]÷2(x-y)^2[2(x-y)^3-8(x-y)^2(x+y)+6y(x-y)^2]÷2(x-y)^2
3y/x*x-y*y+x/x*x-2xy+y*y+6y*y/x*x*x-x*x*y-xy*y+y*y*y等于多少?
3x的平方×（x-y)+6x(y-x)
因式分解3x^2(x-y)+6x(y-x)
【2(x-y)^3-8(x-y)^2(x+y)+6y(x-y)^2】/2(x-y)^2=
因式分解：3xy(x-y)+6y(y-x)
2(2x+3y)(3x+2y)-(6x-y)(2x-5y)
x+y/2+x-y/3=6,4(x+y)-3(x-y)=-20
{(x+y)/2+(x-y)/3=6 4(x+y)-3(x-y)=-20
4(x+y)-3(x-y)=-20,2/x+y+3/x-y=6
[12(x+y)^3+3(x+y)(x-y)^2]÷6(x+y)
2(x+y)-3(x-y)=1 6(x+y)+(x-y)=51
若(x-y)/(x+y)=3 则(x+2y)/(6x-7y)等于
(3x-4y)(5x-4y)-(7x-8y)(6y-5x)
4x-3y/x-2y÷6y-8x/y-2x